Stylographic pen



(No Model.)

0. STOGKMANN.

STYLOGRAPHIG PEN.

- No. 330,636. Patented Nov. 17,1885.

N. PETERS. Photo-Lilhognphnr. Wnhingtoll. ac.

NITED rnrns STYLOGRAPHIC PEN.

SPECIFICATION forming part of Letters Patent No, 330,636, dated November 17, 1885.

Application filed September 24, 1885. Serial No.178,069. (No model.)

To all whom it may concern:

Be it known that I, CHRISTOPHER STooK- MANN, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Iniprovements in Stylographic Fountain-Pens, of which the following is a specification.

My invention relates to improvements in stylographic fountain-pens; and it consists, essentially, in securing the spindle of sucha pen directly to the air tube or stem, said stem being provided with a transverse hole through which the upper end of the spindle is passed and then bent back upon itself and twisted. Ordinarily, the spindle is soldered to a post projecting from the lower end of the air tube or stem, which post is usually made of metallic silver, and the spindle is soldered thereto with the same metal, and therefore both the medium of connection and the post itself are affected by the contents of the pen, especially when ink is employed which is more than ordinarily acid. The deleterious action of ink upon the metal finally results in the destruction of the post, and considerable expense and trouble are thereby incurred, as it is then necessary to insert a new post and to resolder the spindle thereto. This I avoid by dispensing with the post and by rigidly securing the spindle directly to the air tube or stem in such a manner that the spindle can be easily removed and a new one inserted without any additional expense.

The novel features of my improved stylographic fountain-pen are more fully pointed out in the following specification and claims, and illustrated in the accompanying drawings, in which Figure 1 represents an elevation, partly in section, of a stylographic pen provided with my improvement. Fig. 2 is an elevation, partly in section, of the spindle as attached to the air-tube, the said view being drawn on a larger scale than the preceding figure. Fig.

3 is a similar view ofa slight modification thereof. Fig. 4 is a transverse horizontal section in the plane mm, Fig. 3.

Similar letters indicate corresponding parts. In the drawings, the letter A designates the outer case, and B is the air-tube, of a stylographic fountain-pen, both being arranged as usual. G is the spindle, part of which is coiled into a'spring in the ordinary manner, leaving a straight portion extending from each end of the spring.

In the lower solid end of the air-tube B is a transverse hole, I), and through this hole I) is passed the upper uncoiled portion, a, of the spindle O. This portion a is then bent back upon itself, so as to extend around that portion of the air-tube extending beneath the hole I), and is finally twisted or otherwise secured, whereby the spindle is rigidly fastened to the air-tube. The spindle is formed of platinum wire as usual.

In the modifications shown in Figs. 3 and 4 notches c o are formedin the air-tube which extend downward from the hole b, and a notch,

0 which extends across the end of the airtube B, connects with the notches c c,so as to form a continuous groove, within which the looped portion of the spindle lies, so that any side movement of the spindle is prevented. If desired, the notches c 0 may be omitted, and only the end notch be formed in the air-tube. If a stem,instead of an air-tube,is used in the stylographic fountain-pen, the spindle can be secured to the stem in precisely the same manner.

An important feature resulting from my present improvement is the fact that the relative length of the spindle O is less than when a post, as described, is used, since with the same length of spindle in both cases it is clear that the distance of the point of the spindle from the end of the stem or tube when a post is used is increased by the length of said post.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with the air tube or stem having therein a transverse hole, 6, of a spindle, one end of which extends through said hole in the air-tube, substantially as described.

2. The combination, with the air tube or stem, of a spindle, the upper end of which is passed transversely through the lower end of the air tube or stem, then bent back upon itself and twisted, substantially as shown and described.

3. The combination, with the air tube or In testimony whereofIhave hereuntoset my stem having a transverse hole and agroove in hand and seal in the presence of two subscribits lower end, of the spindle 0, one end ofing Witnesses.

which is passed through the hole, then bent CHRISTOPHER STOCKMANN. [L. s.] 5 back upon itself and twisted, the loop thus W'itnesses:

formed lying in the groove and hole, substan- A. FABER DU FAUR, J12,

E. F. KASTENHUBER.

tially as shown and described. 

